Attorn ev



(No Model.) 2 Sheets-Sheet 1- W113. DUNNING. Street Sweeper." No.229,390; Patented June 29,1880.

vi9 M/Q70Z073 WILLIAM B.' DUNNING,

ATTORNEY.

N. PEI'ERS, PHOTb-UTHOGRAFHER, WASHINGTON: D, CI

r I A (No Model.) 2 sheetssheet 2. W. B. DUN NIN'G.

Street Sweeper. No. 229,390. Patented June 29,1880.

a d WILUAW ATTORNEY. w.

MPETERS. FHOTO-LITHOGRAPHER, WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

WILLIAM B. DUNNING, OF GENEVA, NEW YORK.

STREET-SWEEPER.

SPECIFICATION forming part of Letters Patent No. 229,390, dated June 29,1880.

Application filed April 14, 1880.

To all whom it may concern: 1

Be it known that 1, WILLIAM B. DUNNING, of Geneva, in the county ofOntario and State of New York, have invented a new and usefulImprovement in Street-Sweepers; and I do hereby declare that thefollowing is afull, clear, and exact description of the same.

My invention relates to street-sweepers of that class in which the dirtis swept up and conveyed to a receptacle mounted upon or attached to thesweeper, so as to take up and convey away the dirt swept from thestreet.

The object of the invention is to provide an effective apparatus bymeans of which the dirt may be removed from the street by the sweeperitself, and the additional labor of shoveling it into carts be obviated.

It, consists, mainly, in the construction of the fan-chamber andexhaust-passages; and, further, in combining therewith a receptacle fordust, and power for operating the device, as fully hereinafterexplained.

In the drawings hereunto attached and formin g a part of thisspecification, Figure l represents a vertical longitudinal sectionthrough the sweeper and cart, and Fig.2,a side view.

In carrying out my invention I may use an apparatus such as that shownin the drawings, in which Arepresents a sweeper, mounted upon wheels at0,. These wheels may be drivingwheels impelled by the force of an enginecarried upon the frame of the apparatus, as shown at b; or, if it bedeemed undesirable to use an engine, the whole apparatus may be providedwith a tongue or thills for the attachment of horses. As these machinesare commonly employed at night, the use of steam as a motive power isthe less objectionable and may be used with great advantage.

The brush in the form shown by me is indicated at c. It is representedas driven (so as to throw the dirt backward) by a band, d,

i from one of the drive-wheels of the carriage;

though this is not absolutely necessary. It

but manifestly it may be driven directly from the engine, or in anyother suitable way, and the wheels of the carriage may be driven bychain or other gear in the ordinary manner.

The fan e is placed within a cylinder confor ning thereto, and extendspreferably across the machine, equaling the brush in length,

(No model.)

may be driven directly from the fly-wheel of the engine. I haverepresented it as driven from one of the drive-wheels through anintermediate wheel, R.

The fan-chamber is located slightly above and in rear of the brush, andis provided with a passage, f, opening just behind the said brush. Apiece of heavy rubber or other suitable material is heldin place closeto the pavement by the plate attached to the rear wall far enough tocatch the dust thrown up by the brush, but sufficiently above thesurface to be swept not to be-in contact therewith. The rear wall isalso extended upward, and forms one side of an upper flue, g,throughwhich the dirt is discharged by the force of the blast. Thisconstruction and arrangement of the fanchamber and fiues for ingress andegress of the blast give a direct line of passage to the material to begathered, and secure more effectually the collection of the same.

In rear of the discharge-flue, and connected therewith, I contemplatelocating a dust-chamber. This may be upon the same carriage; but forgreater convenience I contemplate generally the use of a separate cartprovided with a closed box for the dirt collected and discharged by thebrush and fan. The cart may be of ordinary construction, as representedat B, and may be attached to the carriage of the sweeper by means ofhooks and staples, or some equivalent device, so that it could bereadily detached when filled, and thus be adapted to be drawn by ahorse, like an ordinary cart. I prefer, however, to attach the cart tothe sweeper by a coupling connecting its rear end with such sweeper sothat the thills project out behind, rendering it a matter of moreconvenience and rapidity to attach the horse. Any number of carts maythus be filled in succession by the same sweeper.

A heavy cloth or leather connection, It, is attached to the mouth-pieceof the fan-cham ber, and extends back into the cart, by means of whichthe dust is conveyed from the machine and deposited in the receptacle.The

cart may be readily connected and disconnected by simply unhooking thethills and Withdrawing the cloth or leather connection from thedust-chamber.

I do not limit myself to the form of blowing mechanism shown, but mayuse any of the well-known blowers. All that is required is that theblower shall be simple and compact, and that it shall be placed betweenthe brush and the receptacle for the dust, and arranged to exhaustthrough the mouth of the blower next the brush and discharge into thereceptacle.

It will be observed that by the use of a fan the dust and dirt whichlodge between the stones of an ordinary pavement, and are inaceessibleto a brush alone, are also gathered up and removed.

I am aware that a fan in connection with the revolving brush of astreet-sweeper is not new, the same being shown in the patent of Deegan,of June 6, 1854.

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is

1. In a street-sweeper, the combination of the fan-chamber, locatedslightly above and in rear of the brush, of the passages f and g and ofthe fan 6, said fan and passages being constructed in the manner shown,and thereby 25 adapted to impel the dust directly backward and todeliver it to a receptacle in the rear, as set forth.

2. The combination of the carriage provided with a revolving brush andfan and receptacle 0 for the dust or dirt with an engine mounted on saidcarriage and adapted to propel the carriage and drive the fan and brush,as set forth.

3. The combination, in a street-sweeper, of the brush a and passages fg, of the fan-cham- 3 5 her and fan, located on one side and partlybetween said passages, and of the flexible connection h, adapted to leadto a separate cart, as described.

In testimony whereof I have signed myname 40 to this specification inthe presence of two subscribing witnesses.

WM. B. DUNNING. Witnesses:

S. SoUTHwoRTH, OHAs. H. RUsH.

